Units for difficult patients are the most closely watched psychiatric units in France. It treats the mentally ill dangerous to society, hospitalized at the request of the prefect because they have committed acts of violence, some of which can go as far as murder. Near Bordeaux, the Cadillac UMD is one of the oldest: the patients suffer from very serious psychiatric pathologies, their illness has taken them so far that they need permanent monitoring. For nearly a year, the cameras were able to film as close as possible to the patients, their families and the medical staff who sometimes accompany them until their return to freedom.
